Draughtproofing a room

tea and coffee

I have a utility room that is an uninsulated extension. For various reasons, it would be a pain in rear to insulate. The one wall "attached" to the rest of the house is dry lined, so the "weakest link" is the rubbish interior door that separates it from the rest of the house.

I had the idea to get a "back door" that didn't look too exterior for that room, but it could look awful.
Is there an internal door alternative that would look better but also provide reasonable draught proof/ insulation to what is a very cold room.

MicktheMan

Have a look here

EVGR

Thank you very much Mick, for that tip. I havent come across that before.
I may try this for the hinged attic door. Do you think it will work? The double draught strips I've put up dont seem to be a good enough method.

greasepalm

I have double the issue with 2 doors been drafty and may get a pvc and frame to kill the draft.
Like yourself no insulation in roof 2 roof skylight and extraction vent.